package NGUYENDUCVIETPRACTICELV2;

public class BATGIAC_Model {
	public double Chuvi(BATGIAC obj){
		return obj.getA()*8;
	}
	public double Dientich(BATGIAC obj){
		return obj.getA()*obj.getA()*(2+(4/Math.sqrt(2)));
	}

}
